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Install in OpenClaw
/install openclaw-free-web-search
Description
Zero-API-key free web search, browsing, and claim verification for AI agents. No API keys required. 100% free. Designed to reduce hallucination risk by surfa...
Usage Guidance
This SKILL.md aims to provide free web search and verification and is internally consistent, but it does not contain the actual implementation — it instructs you to pip install a separate PyPI package and optionally run Docker/SearXNG. Before installing or running anything: 1) verify the PyPI package owner and inspect the package contents (or fetch the source from the GitHub repo) to ensure it matches expectations; 2) prefer installing into an isolated environment (virtualenv, container) to limit system impact; 3) be cautious of similarly named packages (typo-squatting) and check package checksums/signatures if available; 4) review any scripts (start-searxng.sh, docker compose) before running, and avoid toggling insecure TLS unless you understand the consequences; 5) if you need stronger assurance, request the actual package source code or a reproduced wheel for audit — the lack of bundled code in the skill means you must trust an external PyPI publication to get the implementation.
Capability Analysis
Type: OpenClaw Skill
Name: openclaw-free-web-search
Version: 18.0.0
The skill bundle provides a legitimate utility for web searching, browsing, and claim verification without requiring API keys. It utilizes DuckDuckGo and self-hosted SearXNG as search providers. The documentation (SKILL.md, README.md) and changelog are comprehensive, professional, and align with the stated purpose of reducing AI hallucinations. No indicators of data exfiltration, malicious execution, or harmful prompt injection were found; the instructions for the AI agent are focused on factual accuracy and citation.
Capability Tags
Capability Assessment
Purpose & Capability
The name/description (free web search, browsing, claim verification) matches the documented commands and provider choices (DuckDuckGo, optional self-hosted SearXNG). The skill does not request unrelated credentials or binaries in its metadata, which is proportionate to the described purpose.
Instruction Scope
The SKILL.md explicitly directs the operator to run `pip install zero-api-key-web-search`, start an MCP server (`zero-mcp`), and optionally run Docker Compose / start a local SearXNG instance. Those are legitimate for the stated functionality, but they instruct the agent/human to install and execute third-party code and potentially system-level services — which expands the execution surface beyond a simple read-only instruction file and should be reviewed before execution.
Install Mechanism
The registry bundle contains only documentation (no code), and the runtime instructions rely on pip installing a package from PyPI. The skill package itself does not include the code, so the install will fetch code from an external source (PyPI). That is a supply-chain risk (possible typo-squatting, malicious publish, or unexpected behavior in the published package). No install checksum, pinned version, or curated release URL is provided in the SKILL.md.
Credentials
The skill declares no required env vars in metadata. SKILL.md mentions optional env vars (e.g., ZERO_SEARCH_SEARXNG_URL and an env var to allow insecure TLS) which are reasonable for an optional self-hosted provider. There are no unrelated secret credentials requested. However, the presence of optional TLS-insecure toggles and an environment hook to point at arbitrary SearXNG endpoints means an operator could direct traffic to arbitrary endpoints if not careful.
Persistence & Privilege
always:false (good). But following the instructions will install persistent CLI/MCP binaries (`zero-search`, `zero-mcp`) into the system via pip, and may start persistent services (Docker Compose for SearXNG). That persistence and system-level activity is expected for a CLI/mcp-based search tool but increases blast radius compared to an instruction-only, read-only skill.
How to Use
- Make sure OpenClaw is installed (local or Docker)
- Run the install command in chat:
/install openclaw-free-web-search - After installation, invoke the skill by name or use
/openclaw-free-web-search - Provide required inputs per the skill's parameter spec and get structured output
Version History
v18.0.0
Version 18.0.0
- Renamed skill to "zero-api-key-web-search" with improved, platform-agnostic branding.
- No API keys required—100% free search, browsing, and claim verification.
- Introduced new CLI commands: zero-search, zero-browse, zero-verify, zero-report (legacy aliases retained).
- Expanded compatibility and setup details for multiple AI agent platforms.
- Added comprehensive usage guidance, compatibility notes, and updated documentation (README.md, CHANGELOG.md).
- Emphasized evidence surfacing, citation, and free dual-provider strategy.
v16.0.0
Refresh legacy OpenClaw skill slug to point to the renamed cross-validated-search project with evidence-report, verify-claim, and free ddgs + self-hosted SearXNG guidance.
v11.0.0
Free Web Search Ultimate v11.0 adopts a "Search-First" paradigm:
- Major refactor: Replaces previous scripts and docs with a streamlined, unified interface (`search-web`, `browse-page`) and guidelines for agents.
- Provides concise behavior guidelines and a clear decision tree to enforce searching live web before answering factual or timely queries.
- Simplifies command structure for web, news, images, books, and videos search, with improved region and timeframe controls.
- Details universal integration (OpenClaw, MCP server, LangChain, OpenAI) for LLM agents and pip install instructions.
- Removes older implementation/agent/script files and replaces existing SKILL.md with comprehensive new documentation focused on agent-centric behavior.
- Stronger emphasis on real-time accuracy, cite-every-fact policy, and privacy-first design.
v4.0.0
v4.0: Added verify_claim.py for multi-source cross-validation. Now tells you how much to trust the answer with VERIFIED/LIKELY_TRUE/UNCERTAIN/LIKELY_FALSE verdicts. Multi-engine parallel search + 4-tier anti-bot cascade + authority-weighted scoring.
v1.0.0
Initial release - Free, private web search for OpenClaw with self-hosted SearXNG + Scrapling anti-bot fetcher. Zero API keys, zero cost.
Metadata
Frequently Asked Questions
What is Zero-API-Key Web Search?
Zero-API-key free web search, browsing, and claim verification for AI agents. No API keys required. 100% free. Designed to reduce hallucination risk by surfa... It is an AI Agent Skill for Claude Code / OpenClaw, with 1489 downloads so far.
How do I install Zero-API-Key Web Search?
Run "/install openclaw-free-web-search" in the OpenClaw or Claude Code chat to install it in one step — no extra setup required.
Is Zero-API-Key Web Search free?
Yes, Zero-API-Key Web Search is completely free, licensed under MIT-0. You can download, install and use it at no cost.
Which platforms does Zero-API-Key Web Search support?
Zero-API-Key Web Search is cross-platform and runs anywhere OpenClaw / Claude Code is available (cross-platform).
Who created Zero-API-Key Web Search?
It is built and maintained by Da Wei (@wd041216-bit); the current version is v18.0.0.
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